This was a randomized, single-blind, two-period, two-sequence, cross-over study under fasting condition. The participating subjects were required to have an overnight fast and in the next morning were given orally one tablet of the test drug (Lisinopril 10 mg, produced by PT Dexa Medica) or one tablet of the reference drug (Zestril® 10 mg, PT Boehringer Ingelheim Indonesia, Indonesia, under license from Astra Zeneca UK Ltd.).